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C6 Rates of Reaciton

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65 Nsɛmmisa
4.6.1.1 Calculating rates of reaction
1
4.6.1.1
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WS2.3
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WS2.4
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MS2c
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4.6.1.1
WS3.5
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4.6.1.1
MS4a
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4.6.1.1
MS4a
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4.6.1.1
MS3c
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4.6.1.1
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4.6.1.1
WS3.5
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4.6.1.1
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4.6.1.1
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4.6.1.1
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4.6.1.1
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4.6.1.1
MS1a
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4.6.1.1
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4.6.1.1
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4.6.1.1
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4.6.1.1
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WS2.6
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WS2.6
WS3.7
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WS3.7
4.6.1.2 Factors affecting rate of Reaction
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4.6.1.2
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WS2.6
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WS2.6
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4.6.1.2
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4.6.1.2
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4.6.1.2
WS1.3
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
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4.6.1.2
4.6.1.3 Collision theory and activation energy
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4.6.1.3
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4.6.1.3
4.6.1.4 Catalysts
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4.6.1.4
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4.6.1.4
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4.6.1.4
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4.1.3.2
4.6.1.4
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4.6.1.4
4.9.3.1
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4.6.1.4
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4.1.3.2
4.6.1.4
4.6.2 Reversible reactions and dynamic equilibrium
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1.

Give the unit the answer will be in

Question 2
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Question 3
00:44
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Question 4
01:25
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Question 5
01:34
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Question 6
01:59
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Question 7
02:26
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Question 8
03:24
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Questions 9 & 10
00:17
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Question 11
01:19
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Question 12
01:51
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Question 13
02:28
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Question 14
03:09
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Question 15
03:24
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Question 16
04:07
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Question 17
05:00
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18.
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19.

Which apparatus would measure 50cm3 of hydrochloric acid with the greatest accuracy

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20.

The student measured the volume of gas produced every 20 seconds for 2 minutes.

The volume of gas was zero at the start of the experiment.

The measured volumes of gas were: 26 cm3 38 cm3 47 cm3 55 cm3 59 cm3 60 cm3

Complete the table to show these results.

Tick one box to select the correct unit for each variable.

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21.

Describe the trends shown in the student’s results.

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22.

https://s3.amazonaws.com/app-production-uploads/b59f1694-bfc2-4d5e-93ab-e5b970fbfef1_5b9bb78a2c186e0001c07e03_c.JPG

Which carbonate produced carbon dioxide at the highest rate?

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23.

https://s3.amazonaws.com/app-production-uploads/b59f1694-bfc2-4d5e-93ab-e5b970fbfef1_5b9bb78a2c186e0001c07e03_c.JPG

What volume of carbon dioxide was produced by strontium carbonate in twelve minutes? [1]

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24.

12g of iron oxide is produced in 120s, what is the reaction rate?

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25.

Match the method to the unit of rate of reaction

Draggable itemarrow_right_altCorresponding Item

A conical flask containing sodium thiosulfate and dilute hydrochloric acid is placed on a piece of paper with a cross on it.

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g/s

Marble chips and hydrochloric acid are placed in a conical flask on a top-pan balance.

arrow_right_alt

cm3/s

Marble chips in hydrochloric acid are placed in a conical flask, with a bung attached to a gas syringe at the opening.

arrow_right_alt

s

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26.

Describe the trends shown in the student’s results.

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27.
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28.

Measuring the gas produced, the mass lost, or the light transmitted are all ways of measuring the rate of reaction.

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29.

Describe to Jun a method he could use to measure rate of reaction, and an advantage of using this method.

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30.
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31.
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32.

Show your calculations

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33.
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34.
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35.
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36.
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37.

Which one of these would be most suitable to use to measure a liquid of volume of 9 cm3?

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38.

What is the volume reading below, in cm3?

Write number value only, no unit.

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39.
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40.

Name a piece of equipment suitable for measuring the volume of a solution.

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41.

What is the volume of gas in the syringe?

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42.

Increasing the pressure of gases in a reaction will increase the rate of reaction.

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43.

Increasing the temperature of reactants increases the number of particles in the reaction.

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44.

There are five main factors that affect the rate of reaction.

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45.

For every 10°C temperature increase, the rate of reaction triples.

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46.

Which of the following factors does not affect the rate of a chemical reaction?

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47.

What happens to the rate of reaction when the temperature is increased?

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48.

What is the minimum energy required for a reaction to occur called?

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49.

What causes the cross to disappear in the disappearing cross experiment?

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50.

Doing which of the following will increase the rate of a reaction?

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51.

What happens to the rate of a chemical reaction when the temperature is increased?

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52.

If the temperature of a reaction increases, what happens to the energy of the particles?

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53.

Which of the following explains why increasing temperature increases the rate of reaction?

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54.

Why does cooling a reactant decrease the rate of a reaction?

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55.

Which of the following statements about temperature and volume of gas produced is correct?

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56.

What effect does increasing the temperature have on the reactant particles?

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57.

Collision theory states that particles must collide with enough energy in order to react.

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58.

The minimum amount of energy required for a successful collision is called the starter energy.

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59.

Different catalysts are needed for different reactions.

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60.

During a reaction, a catalyst gets used up and has to be replaced each time.

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61.

Catalysts are usually cheap transition metals.

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62.
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63.

A catalytic converter efficiently converts unwanted combustion products (e.g. CO, C, NOx) into CO2 and N2

Why are these two gases preferred over the other substances?

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64.

Match the following key terms to their definition.

Draggable itemarrow_right_altCorresponding Item

enzyme

arrow_right_alt

a chemical that speeds up rate of a reaction without being used up

decomposition reaction

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when atoms are rearranged, and changes can be observed e.g. bubbles

Catalyst

arrow_right_alt

type of reaction when a reactant breaks down into two or more products

chemical reaction

arrow_right_alt

a biological catalyst that speeds up reactions in living things

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65.

What group of elements are catalysts from?

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2.

What is rate?

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3.

What reaction is most suitable to measure rate?

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4.

Select the correct equations for calculating rate of reaction

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5.

What are suitable units of rate?

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6.

What is always the correct unit of time?

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7.

We produce 10g in 2 minutes. What is the average rate of reaction?

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8.

At the beginning of a chemical reaction, the rate is....

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9.

What two pieces of measuring equipment is he going to use to capture gas is this experiment?

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10.

What pieces of equipment is best for measuring the volume of a liquid, like acid?

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11.

Which piece of equipment is he using to capture gas in the first method?

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12.

How often do you need to measure the gas produced?

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13.

The first time he did this, he used 2 mol/dm3. The second time time he is using 1 mol/dm3. Do you think it will be faster or slower?

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14.

What piece of equipment captures the gas in this second experiment?

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15.

What piece of equipment measures time for all his experiments?

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16.

What do both experiments level off at the same point?

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17.

List the 3 sources of error from the video